#D2---------------------------------------------- ptorus pt 9 7 plane p2 8 4 4 0 0 1 0 -1 0 pcylinder p2 p2 3 10 bfuse f pt p2 nexplode f f depouille result f 0 0 1 f_2 10 0 0 15 0 0 1 checkprops result -s 2642.63